Soal Elektronika Dasar II (zulhayyir)

Soal Elektronika Dasar II (zulhayyir) - Soal Elektronika...

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Soal Elektronika Dasar II Nama : Zulhayyir NIM : H21115018 PENGUAT GANDENGAN DC 1. Dalam penguat lebih dari satu tahap dapat terjadi osilasi yang tidak diinginkan, a. Mengapa ini terjadi? b. Disebut apakah osilasi ini? c. Bagaimana mengatasinya? d. Disebut apakah rangkaian penghilang osilasi tersebut? Jawab : a. Peristiwa tersebut terjadi karena 1. Pengaruh tegangan isyarat pada transistor Q2 terhadap Vcc masuk kedalam rangakaian Q1 2. Karena Vccmempunyai hambatan dalam. b. Osilasi perahu motor (motorboating) c. Memasang hambatan (R3) antara Q1 dan Q2 pada Vcc yang di seri dengan kapasitor (Cd) dan tanah. d. Kapasitor pelepas gandengan 2. Penguat darlington sering menggunakan R E seperti berikut, Apakah manfaat pemasangan R E ? Jawab : Untuk Mengurangi Ico (arus penjenuhan sambungan basis-kolektor) yang menyebrang ke emitor Q1 dan masuk basis Q2. 3. Apakah perbedaan penguat gandengan RC dan penguat gandengan DC (langsung)? Jawab: Pada penguat gandengan RC antara tahap yang satu dengan tahap yang lain
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  • Spring '17
  • riswal

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